diff --git a/Gemfile.lock b/Gemfile.lock
index 9c60819..0c3df54 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,8 +34,8 @@ GEM
     diff-lcs (1.3)
     docile (1.3.1)
     equalizer (0.0.11)
-    httparty (0.16.3)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (1.8.2)
       concurrent-ruby (~> 1.0)
@@ -54,9 +54,7 @@ GEM
       rubocop
       simplecov
       thor
-    mime-types (3.2.2)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2018.0812)
+    mini_mime (1.1.2)
     minitest (5.14.1)
     multi_xml (0.6.0)
     parallel (1.12.1)